Optimizing transcutaneous spinal stimulation: excitability of evoked spinal reflexes is dependent on electrode montage

Table 1 Marginal mean values followed by model-based 95% confidence intervals [lower limit, upper limit] for dominant (D) and nondominant (ND) lower extremities for reflex threshold (RT), response amplitude (RA) at 1.2xRT, area under the curve (AUC) from RT to S50, 1.2xRT, and S50

		DV-U	DV-I	DV-PU	DV-PI	DM-C	DM-R
RT (mA)	D	46.7 [33.9, 59.4]	48.1 [35.3, 60.8]	64.3 [51.4, 77.1]	64.9 [52.1, 77.7]	60.0 [46.9, 73.1]	63.1 [50.3, 76.0]
RT (mA)	ND	45.4 [32.5, 58.2]	45.4 [32.5, 58.2]	61.7 [48.8, 74.6]	61.4 [48.5, 75.5]	63.6 [50.8, 76.5]	62.6 [49.8, 75.5]
RA @ 1.2xRT (µV)	D	2344 [1192, 3497]	2826 [1622, 4029]	2856 [1651, 4061]	2983 [1806, 4160]	2429 [1191, 3666]	2554 [1378, 3730]
RA @ 1.2xRT (µV)	ND	1632 [456, 2808]	1545 [368, 2722]	1791 [614, 2969]	1607 [430, 2784]	1893 [697, 3089]	2629 [1476, 3781]
AUC (µVxRT)	D	422 [275, 568]	382 [235, 528]	266 [116, 416]	264 [114, 414]	319 [160, 477]	276 [126, 426]
AUC (µVxRT)	ND	484 [334, 633]	518 [372, 665]	329 [179, 479]	278 [128, 428]	347 [188, 505]	250 [103, 396]
1.2xRT (mA)	D	49.1 [38.5, 59.8]	49.8 [39.1, 60.5]	68.7 [58.0, 79.4]	68.4 [57.7, 79.1]	67.0 [56.3, 77.7]	68.2 [57.6, 78.9]
1.2xRT (mA)	ND	49.6 [39.0, 60.2]	50.2 [39.5, 60.9]	69.2 [58.5, 79.9]	68.9 [58.2, 79.5]	67.4 [56.7, 78.1]	68.7 [58.1, 79.3]
S50 (mA)	D	52.8 [42.1, 63.4]	53.2 [42.5, 63.8]	71.5 [60.8, 82.1]	72.2 [61.5, 82.9]	70.1 [59.2, 80.9]	69.9 [59.2, 80.5]
S50 (mA)	ND	53.2 [42.6, 63.9]	53.6 [43.0, 64.2]	71.9 [61.3, 82.6]	72.6 [62.0, 83.3]	70.5 [59.7, 81.3]	70.3 [59.7, 81.0]

ISSN: 1743-0003